Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
Title ~A-8397-~.
Herbicidal o-Alkylsulfonyloxy- and
o-Alkylsulfonylaminobenzenesulfonamides
Background of the Invention
5This invention relates to ortho~sulfonyl)oxy-
benzene sulfonamides and their use as herbicides.
Netherlands Patent 121,788, published Septem-
ber 15, 1966, teaches the preparation of compounds of
Formula (I), and their use as general or selective
herbicides:
Cl
R ~ 2 ,
3 NHR
wherein
R1 and R2 may independently be alkyl of 1-4
carbon atoms; and
R3 and R4 may independently be hydrogen,
20chlorine or alkyl of 1-4 carbon atoms.
Compounds of Formula (II), and their use as
antidiabetic agents, are reported in J. Drug. Res. 6,
123 (197~):
~ S (II)
S02NHCNHR
wherein
R is pyridyl.
~,
1~ 1ti816
In U.S. Patent 4,127,405, compounds are dis-
closed of the general formula:
X
W N~
" J/
N~
(I)
wherein
R is
R /~ R /~Rl o
lS R7 R6
or ~
R3 and R6 are independently hydrogen,
fluorine, chlorine, bromine, iodine, alkyl of
1-4 carbon atoms, alkoxy of 1-4 carbon atoms,
nitro, trifluoromethyl, cyano, CH3S()n~
3 2 ( )n ;
R4 is hydrogen, fluorine, chlorine, bromine or
methyl;
R5 is hydrogen, fluorine, chlorine, bromine,
methyl or methoxy;
R7 is hydrogen, fluorine, chlorine, bromine,
alkyl of 1-2 carbon atoms or alkoxy of 1-2
carbon atom;
R8 is hydrogen, methyl, chlorine or bromine;
Rg and Rlo are independently hydrogen,
methyl, chlorine or bromine;
W and Q are independently oxygen or sulfur;
n is 0, 1 or 2;
x is hydrogen, chlorine, bromine, methyl,
ethyl, alkoxy of 1-3 carbon atoms, tri-
fluoromethyl, CH3S- or CH3OCH2-; and
Y is methyl or methoxy; or their agriculturally
suitable salts; provided that:
(a) when R5 is other than hydrogen,
at least one of R3, R4, R6
and R7 is other than hydrogen
and at least two of R3, R4,
R6 and R7 must be hydrogen;
(b) when R5 is hydrogen and all of
R3, R4, R6 and R7 are
other than hydrogen, then all of
R3, R4, R6 and R7 must be
either chlorine or methyl; and
(c) when R3 and R7 are both
hydrogen, at least one of R4,
R5 or R6 must be hydrogen.
In particular, the patent discloses ortho-
substituted compounds wherein the substitution is
Cl-C4 alkyl.
: '
.
: .
The presence of undesired vegetation causes sub-
stantial damage to useful crops, especially agricul-
tural products that satisfy man's basic food needs,
such as soybeans, corn, wheat and the like. The
current population explosion and concomitant world
food shortage demand improvements in the efficiency of
producing these crops. Preventing or minimizing the
- loss of a portion of valuable crops by killing, or
inhibiting the growth of undesired vegetation is one
way of improving this efficiency.
A wide varie~y of materials useful for killing,
or inhibiting (controlling) the growth of undesired
vegetation is available; such materials are commonly
referred to as herbicides. However, the need exists
for still more effective herbicides that destroy or
retard weeds without causing significant damage to
useful crops.
s
Summar of the Invention
Y
This invention relates to novel compounds of
Formula I, agriculturally suitable compositions con-
taining them, and their method of use as general as
well as selective pre-emergence and post-emergence
herbicides.
2 ~ QS2Rl,
R SO2NHCNA
3 R4
15 where
W is O or S;
Q is O or NR5;
Rl is Cl-C4 alkyl~ Cl-C4 alkyl
substituted with 1-3 atoms of F,
Cl or Br, CH2CH2OCH3,
CH 2CH 2CH 20C H 3 or
~--~," R6
~R7
R2 is H, F, Cl, Br, OCH3, NO2 or
Cl-C2 alkyl;
R3 is H, F, Cl, Br or CH3;
R4 is H, CH3 or OCH3;
R5 is Cl-C4 alkyl;
R6 and R7 are independently H, F,
Cl, Br, CH3, CF3, NO2 or
OCH3;
B~
A is
X Y
N~ N_~
~Oz ' ~0~ ~
N--< N ~ X ,( CH 2 ) n
y
N-N N-~
~ ~ X2 or ~ N
N ~
Y2 Y2
X is NH2, N(CH3)2~ NHCH3~ Cl 4
alkyl, Cl-C4 alkyl substituted with
1-3 atoms of F, Cl or Br, CH2OCH3,
CH2OCH2CH3, Cl-C4 alkoxy~
Cl-C2 alkylthio, C3-C4 alkenyloxy,
C3-C4 alkynyloxy~ OCH2CH2OCH3 or
C2-C4 alkoxy substituted with 1-3
atoms of F, Cl or Br;
n is 1 or 2;
Y is H, CH3, OCH3 or Cl;
Xl is O or CH2;
Yl is H, CH3, OCH3 or Cl;
X2 and Y2 are independently CH3 or
OCH3; and
Z is CH, N, CCH3, CBr, CCl, CF, CI,
CC2H5, CCH2CH2Cl or CCH2CH=CH2;
provided that
~1) when Y is Cl, then Z is other than N
and X is NH2, NHCH3, N(CH3)2,
CH3 or OCH3;
(2) when Y is H, then X is OCH3, CH3 or
CH2OCH3, and Z is other than N; and
(3) when W is S, then R4 is H.
8~;
Preferred for reasons of higher herbicidal
activity and/or more favorable ease of synthesis are:
(1) Compounds of the generic scope where
R5 is CH3, W is O, and R4 is H or
S CH3;
(2) Compounds of Preferred (1) where Rl is
1 4 Y ~ 3' 2 2 C 3 or
CH2CH2CH2OCH3;
(3~ Compounds of Preferred (2)- where R2
is H;
(4) Compounds of Preferred (3) where R3
is H;
~5) Compounds of Preferred (4) where
Rl is Cl-C~ alkyl or CF3;
Q is O;
A is
X
N ~
~ O z ; and
N ~
Z is CH or N.
(6) Compounds of Preferred (5) where
R4 is H; and
(7) Compounds of Preferred (6) where
X and Y are independently CH3
or OCH3, and Rl is CH3.
Specifically preferred for highest herbicidal
activity and/or most favorable ease of synthesis are:
N~ [ (4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-hy-
droxybenzenesulfonamide, methanesulronate;
2-hydroxy-N-[(9-methoxy-6-methylpyrimidin-2-yl)amino-
carbonyl]benzenesulfonamide, methanesulfonate; and
N- [ (4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-hy-
droxybenzenesulfonamide, methanesulfonate.
All of the above compounds show selectivity on
wheat.
N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate;
2-hydroxy-N-[(4-methGxy-6-methyl-1,3,5-triazin-2-yl)-
aminocarbonyl]benzenesulfonamide, methanesulfonate;
15 N-[(4,6-dimethyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate;
N-[ (4,6-dimethoxy-1,3,5-triazin-2-yl)(methyl)aminocar-
bonyl]-2-hydroxybenzenesulfonamide, methanesulfonate;
N-[ (4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-hy-
droxybenzenesulfonamide, l-propanesulfcnate, which
shows selectivity on rice and corn; and
2-hydroxy-N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-
aminocarbonyl]benzenesulfonamide, l-propanesulfonate,
which shows selectivity on soybeans.
This invention also relate~ to compounds of For-
mula II which are useful intermediates for the prepa-
ration of the herbicidal compounds of Formula I:
QS2Rl
R2 ~
3 SO2NCW
II
where
W is O or S;
8~;
Q is O or NR5;
Rl is Cl-C4 alkyl, Cl-C4 alkyl
substituted with 1-3 atoms of F,
Cl or Br, CH2CH2OCH3,
CH2CH2CH2OCH3, or
R2 is H, F, Cl, Br, OCH3, NO2 or
Cl-C2 alkyl;
R3 is H, F, Cl, Br or CH3;
R5 is Cl-C4 alkyl; and
R6 and R7 are independently H, F, Cl,
Br, CH3, CF3, NO2 or OCH3.
Preferred intermediates, for reasons of more
favorable ease of synthesis and/or higher herbicidal
activity or^ the compounds of Formula I, are:
(1) Compounds of Formula II where Q is O,
R2 and R3 are H, R1 is CH3 or
CF3, and W is O; and
(2) Compounds of Formula II where Q is
NCH3, R2 and R3 are H, Rl is
CH3 or CF3, and W is O.
This invention also relates to compounds of For-
mula VII which are useful intermediates for the prepa-
ration of the herbicidal compounds of Formula I:
R2 ~ S02NHCNH--<~
10 VII
where
Q is O or NR5;
Rl is Cl-C4 alkyl, Cl-C4 alkyl
substituted with 1-3 atoms of F,
15C1 or Br, CH2CH2OCH3,
2 2 2 3~ r
~_~ R6
~ ;
R7
R2 is H, F, Cl, Br, OCH3, NO2 or
Cl-C2 alkyl;
R3 is H, F, Cl, Br or OCH3;
25R5 is Cl-C4 alkyl;
R6 and R7 are independently H, F, Cl,
Br, CH3, CF3, NO2 or OCH3; and
Z is CH or N.
ll
Synthesis
The compounds of this invention can be made as
outlined below. The compounds of Formula (IV), (VI),
(XII) or (XIV) can be prepared by reacting an appro-
priate 2-a~inopyrimidine, 2-aminotriazine or 2-amino-
bicyclopyrimidine of Formula (III), (V), (XI) or
(XIII) with an appropriately substituted sulfonyliso-
cyanate or isothiocyanate, of Formula (II), where Q,
Rl, R2, R3~ R4~ X, Y, Z, Xl, X2, Y~, Y2, W
were previously defined.
The reaction is best carried out in inert sol-
vents e.g. methylene chloride and acetonitrile.
The mode of addition is not critical, however, it is
often convenient to add a solution of the isocyanate
or isothiocyanate of Formula (II) to a stirred suspen-
sion of the aminoheterocycle (III), (V), (XI) or
(XIII).
The reaction is generally exothermic. In some
cases, the desired product is insoluble in the reac-
tion medium and crystallizes from it in pure form.Products soluble in the reaction medium are isolated
by evaporation of the solvent and trituration of the
residue with solvents e.g. diethyl ether, l-chloro-
butane, or hexanes and filtration.
12
1.~ X
R2~ SO2NCW 4
II III
~ ~ Q 2 1 _~X
R~ N
IV
2.)
N~
II + HN--<O~_,
R4 N~Xl(CH2) n
V
R2~ R4 N~X ,(CH2) n
VI
13
3 . )
N_N
II ~ HN~ ~ X2
R4 N~
Y2
XI
> R~ ~ N
R4 N
XII
4 . )
N~X2
I I ~ HN~
R4
Y2
XIII
~QS02Rl ~X2
R2~SO2NH~-N~ ON
> R3 R~ \~
Y2
XIV
l ~ ~ l t~
14
Compounds of this invention may also be prepared
by reacting a sulfonamide of Formula VIII with a 4,6-
dichloroheterocyclic isocyanate of Formula IX.
Cl ~ QS2Rl
l ~ ~ ~ SO NH
IX VIII
2 ~ "
VII
One or both of the halogen atoms on the hetero-
cyclic ring of the compound of Formula VII can be dis-
placed by an alkoxide of OR8, to give compounds of
Formula X, where R8 is Cl-C4 alkyl, C3-C4 alkenyl,
C3-C4 alkynyl, CH2CH20CH3 or C2-C4 alkyl substituted
with 1-3 ato~s of F, Cl or Br, and Y" is Cl or OCH3.
QS2Rl
2 ~ OR8
VII NaOR8 R3 " ~ O
Y"
X
The process for the preparation of compounds of
Formula X is described in our co-pending patent
application Serial No. 365 588.
Sulfonamides, prepared as described in Research
DisclosLre, pg. 52, (1978), may conveniently be con-
verted to the corresponding isocyanates or isothio-
cyanates of Formula II by methods described in U.S.
Patent No. 4,127,405.
The synthesis of the heterocyclicamine deriva-
tives has been reviewed in "The Chemistry of Hetero-
cyclic Compounds", a series published in Interscience
Publ., New York and London.
2-A~inopyrimidines are described by D. J. Brown
in "The Pyrimidines", Vol. XVI of the above series.
The preparation of amino bicyclopyrimidines are
described in unexamined European Patent No. 15683.
The aminoheterocyclic intermediates of Formula
III, V, XI or XIII in which R4 is CH3, may be pre-
pared by the following procedure, or by obvious modi-
fications thereof.
X X
20 N ~ N
H2N ~ O~ 2 ) Cl ~ O Z
Y Y
25 XV XVI
N ~
H2NCH3CH3NH ~ O Z
N
y
XVII
16
A solution of the amine XV in concentrated hy-
drochloric acid is contacted with an aqueous sodium
nitrite solution and the chloro compound XVI is iso-
lated by filtration of the acidic solution (see for
example, Bee and Rose, J. Chem. Soc. C., 2051 ~1366)
for the case in which Z is CH and X and Y are
OCH3). Displacement of the chlorine may be accom-
plished by heating with an excess of methylamine in
water to obtain the methylaminoheterocycle XVII.
N-Methoxyamino heterocycles can be prepared by
procedures reported on the literature [see, for exam-
ple, Belgian Patent 618,563 and J. T. Shaw, et al.,
J. Org. Chem., 27 4054 (1962)] and the procedure
illustrated below.
X X
~ \~ Cl + NH20H ___~ Z \~ NHOH
Y Y
XVI XVIII
25 + CH3Br 3 Z /~ NHOCH3
N
XIX
XVI + NH2OCH3 HCl NaOH ~ XIX
1~ ? ' ~
17
Chloro compound XVI is reacted with hydroxyl-
amine to form derivative XVIII which may be alkylated
with methyl bromide to afford the N-methoxy hetero-
cyclic amine XIX. This compound may alternately be
prepared in one step by treatment of XVI and O-methyl
hydroxylamine hydrochloride with an alkali metal
hydroxide such as sodium hydroxide.
The compounds of this invention and their prepa-
ration are further illustrated by the following exam-
ples, wherein temperatures are given in degrees centi-
grade and parts are by weight unless otherwise indi-
cated.
Example 1
2-Hydroxybenzenesulfonyl isocyanate, methanesulfonate
To 10.0 g (.04 mole) 2-hydroxybenzenesulfon-
amide, methanesulfonate, suspended in 75 ml dry
xylenes was added 4.0 g (.04 mole) N-butylisocyanate
and a catalytic amount of 1,4-diazobicyclo[2.2.2]-
octane (~.05 g). This mixture was rapidly heated to
reflux temperature (~135C) and 4.0 ml of phosgene was
slowly added ~at such a rate as to keep the reaction
temperature greater than 128C)~ The phosgene addi-
tion required ~1 1/2 hours. The reaction was cooled
to room temperature, filtered under N2, and the sol-
vent evaporated under reduced pressure. The infraredspectrum of the resultant oil was consistent for
2-hydroxybenzenesulfonyl isocyanate, methanesulfonate
(2210 cm 1).
Example 2
N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-
hYdroxYbenzenesulfonamide, methanesulfonate
To a suspension of .6 g 2-amino-4,6-dimethoxy-
pyrimidine in 10 ml dry methylene chloride is added
1.1 g 2-hydroxybenzenesulfonylisocyanate, methane-
sulfonate. The reaction exotherms (21C-29C) and is
18
then stirred 1/2 hour. The solvent is evaporated
under reduced pressure. The resultant mixture ls tri-
turated with diethylether and filtered to give 1.2 g
tan solid m.p. 165-166C. The infrared spectrum shows
absorption bands at 1740, 1615, 1590, 1360 cm 1.
Calc. for C-38.9, H-3.73, N-12.9.
Found C-38.3, H-3.63, N-13Ø
ExamPle 3
2-Hydroxy-N-~(4-methoxy-6-methylpyrimidin-2-yl)amino-
carbonYl]benzenesulfonamide, methanesulfonate
To a suspension of .6 g 2-amino-4-methoxy-6-
methylpyrimidine in 10 ml dry methylene chloride is
added 1.1 g 2-hydroxybenzenesulfonylisocyanate,
methanesulfonate. The reaction exotherms mildly and
is then stirred for 1/2 hour. The solvent is eva-
porated under reduced pressure. The resultant mixture
is triturated with diethylether and filtered to give
.95 g white solid m.p. 189-190C. The infrared spec-
trum shows absorption bands at 1700, 1615, 1560, 1370
cm 1.
Calc. for C-40.4, H-3.87, N-13.4.
Found C-40.2, H-3.77, N-13.6.
Example 4
N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-
hydroxYbenzenesulfonamidec methanesulfonate
To a suspension of .6 g 2-amino-4,6-dimethoxy-
1,3,5-triazine in 10 ml dry methylene chloride is
added 1.1 g 2-hydroxybenzenesulfonylisocyanate,
methanesulfonate. The reaction exotherms mildly and
is then stirred for about 1 hour. The solvent is eva-
porated under reduced pressure. The resultant mixture
is triturated with diethylether and filtered to give
1.4 g tan solid m.p. 163-166C. The infrared spectrum
shows absorption bands at 1715, 1600, 1550, 1350
cm 1.
Using the procedures similar to those of Exam-
ples 1-4, the following compounds can be prepared.
8~
19
Table I
QS2Rl
~/ X
~ ~ S2NH ~ N
R4 N ~
Rl 2 3 4 Q W Y X Z m.P~oc)
CH3 H H H O O OCH3 OCH3 CH 165-166
CH3 H H H O O OCH3 CH3 CH 189-190
CH3 H H H CH3 CH3 CH 204-205
CH3 H H H O O O~H3 OCH3 N 163-166
CH3 H H H O O CCH3 CH3 N 170-173
CH3 H H H CH3 CH3 N 181-184
(CH2)3CH3 H H H O O CCH3 O~H3 CH 158-162
( H2)2 2 H H O 3 3
CC13 H H H O O OCH3 CCH3 CH
~ H H H O O CCH3 CH3 CH 216-219
Cl
~ H H H OCH3 CH3 CH
Cl
H H H O O OCH3 CH3 CH
Cl
O2N
~ H H H O O OCH3 CH3 CH
CH3
35 ~ H H H O O OCH3 CH3 CH
CH3
.
, ,' ' ' '
,
,
lt~
Table I (continued)
Rl R2 R3 4 Q W Y X Z m.~.( C)
CF3
H H O O OCH3 CH3 CH
CF3
Br
H H O O OCH3 CH3 CH
Br
CCH3
H H O O OCH3 CH3 CH
C1
F
H H O O OCH3 CH3 CH
CH3 5-Cl H H O O OCH3 OCH3 CH 174-176
CH3 6-CH3 H H O O . OCH3 CH3 CH
CH3 5-F H H O O OC 3 3
CH3 5-NO2 H H CCH3 CH3 CH
30 CH3 5-Br H H o o C 3 3
CH3 5-CCH3 H H O O OCH3 3
CH3 5-CF3 H H O O CCH3 CH3 CH
CH3 5-C1 4-Cl H o o C 3 3
CH3 5-CH3 4-CH3 H o o C 3 C 3
35 CH3 H H CH3 O O OCH3 CCH3 N 91-96
36
Table I (continued)
Rl R2 ~ R4 Q W Y X Z m.P.(C)
3 H H -N-CH3 3 3 CH
CH3 H H H -N(CH2)3 O OCH3 CCH3 CH
CH3
CH3 H H H O O Cl OCH3 CH
3 H H O o OCH3 -(CH~)3CH3 CH
CH3 H H H O O CH3 -CCH2CF3 N
CH3 H H H O O CH3 -OCH2CC13 N
CH3 H H H O O CH3 -OCH2CBr3 N
CH3 H H H O O CH3 OC 2 2
CH3 H H H O O CH3 H CH
CH3 H H H O O CH3 (CH2)3CH3
CH3 H H H O O CH3 CH2CH2Cl
CH3 H H H O O CH3 -CH2CF3 CH
CH3 H H H O O CH3 -(CH2)3CH3 N
CH3 H H H O O CH3 -OCH2CH-CH2 N
CH3 H H H O O CH3 -CCH2C, CH2
- 3
CH3 H H H O O CH3 OCH2C C N
CH3 H H H O O CH3 CCH2C C 3
CH3 H H H O O CH3 -CH2OCH3 CH
CH3 H H H O O CH3 SCH3 CH
CH3 H H H O O CH3 S(CH2)CH3 CH
CH3 H H H o CH3 CH3 CBr
CH3 H H H o CH3 CH3 CI
CH3 H H H o CH3 CH3 CF
CH3 H H H o CH3 CH3 CCl
CH3 H H H O S OCH3 C 3 N
CH3 H H H O S OCH3 3 N
CH3 H H H O S CH3 3 N
CH3 H H H O S OC 3 3 CH
CH3 H H H O S OCH3 C 3 CH
CH H H H O S CH3 3 CH
.CH3 3-Cl H H O 3 3 CH 134-142
'
' ' : ' , '
22
Tabl~ I (contin~
R2 R3 R4 Q W Y X Z ~.?.(C)
_
CH3 3-Cl H H O o OCH3 CCH3 N 165-170
CH3 3-C1 5-Cl H O 3 3 21C(dC^
CH3 3-C1 5-Cl H O O CCH3 CCH3 N 200(d~-
c~3 H H H NCH2CH3 0 CCH3 OCH3 CH
CH3 H H H N(CH2)2CH3 O OCH3 OCH3 CH
CH3 H H H NCH3 O OCH3 3
~H3 H H H NCH3 O CH3 CH3 CH
10 C~ H H H NCH3 ~ff3 CH3 ~
CH2CH3 H H H O OCH3 OCH3 CH 189-191
C~2C~3 H H H O O CCH3 CH3 CH 168-152
GH2CH3 H H H. O O CH3 CH3 CH 195-193
CH2CH3 H H H O O H3 CCH3 N
l; CH2CH3 H H H O O OCH3 CH3 ~'
G~2CH3 H H H O O CH3 CH3
CH2CH3 H H CH3 O O OC~3 OCH3 N
( 2)3 3 H H O O OC 3 3
(C~2)3CH3 H H H O O CH3 CH3 CH 201-2~,
2G (CH2)3C~3 H H H O OC~3 OCH3 N 153-1;3
(C~2)3CH3 H H H O O OCH3 CH3
(CH2)3CH3 H H H O O CH3 CH3 N
(GH2)3CH3 H H H O O H CH3 CCl 135-1~0
(CH2)2CH3 H H H O OC~3 OCH3 CH 172-17;
( 2)2 3 H H O O OCU.3 CH3 CH 183-186
(CH2)2 3 H H O O CH3 CH3 CH 182-la4
(CH2)2C~U.3 H H H O O OCH3 OCH3 N
(C'u2)2CH3 H H H O OCH3 CH3 N 144-147
(C 2)2 3 H H O O CH3 CH3 N
(CH2)2cH3 H H CH3 O O OCH3 CCH3 CH
(CH2)2 3 H H O O H CH3 CCl 18;-190
CF3 H H H O O OCH3 CCH3 CH 129-131
CH2CH2Br H H H O O OCH3 CCH3 CH
CH2 2 3 H H O O OCH3 O~H3 CH
35 CH2CH2OCH3 H H H O O CCH3 CH3 CH
23
Table I (continued)
Rl R2 R3 R4 Q W Y X Z m.~.(C)
CH2CH2OCH3 H H H O O CH3 CH3 CH
CH2CH2OCH3 H H H O O OCH3 CH3 N
(CH2)2CH20CH3 H H H CCH3 OCH3 CH
CH3 H H H O O Cl NH2 CH
CH3 H H H O O C1 NHCH3 CH
CH3 H H H O O Cl N(CH3)2 CH
CH3 H H H O O CH3 C 2 3 CH
CH2CH3 H H H O O CH3 CH2 3 CH
(CH2)2CH3 H H H O O CH3 CH2CCH3 CH
CH3 H H H O O CH3 CH2CH2CH3. CH
CH3 H H H O O CH3 CH2CH3 CH
CH3 H H H O O CH3 CH2CH2CH3 CH
15 CH3 H H H O O CH3 CH2CH2Br CH
CH3 H H H O O CH3 2 3 CH
CH3 H H H O O CH3 O(CH2)2CH3 CH
CH3 H H H O O CH3 CCH2CH=CH2 CH
CH3 H H H O O CH3 CCH2C=CH2 CH
CH3
CH3 H H H O O CH3 CCH2C-CH CH
CH3 H H H O O CH3 CCH2C~CCH3 CH
CH3 H H H O O CH3 O-H2CH2OCH3 CH
CH3 H H H O O CH3 O~H2CH2OCH3 N
CH3 H H H O O CH3 CCH2(CH2)2C1 CH
CH3 H H H O O CH3 CCH2(CH2)3Cl CH
CH3 H H H O O H CH3 CCl
CH3 H H H O O C1 CH3 CCH2CH2C1
CH3 H H H O O CCH3 CCH3 CH3
CH3 H H H O O CCH3 CCH3 CH2CH3
CH3 H H H O O OCH3 CCH3 CCH2CH=CH2
24
Table I (continued)
Rl R23 4 Q W Y X Z m.p.(C)
CH3 5-Cl H HO O OCH3 CH3 CH 179-181
CH3 5-C1 H H CH3 CH3 CH 204-205
CH3 5-Cl H H CCH3 O~H3 N 180-186
CH3 5-Cl H H O O CCH3 CH3 N 184-187
CH3 5-Cl H H O O H CH3 CCl 210-211
CH3 5-CH3 H H CCH3 CCH3 CH 171-174
CH3 5-CH3 H H CCH3 CH3 CH 181-188
CH3 5-CH3 H H CH3 CH3 CH 180-183
CH3 5-CH3 H HO O OCH3 3 159-161
CH3 S-CH3 H H. O O CCH3 CCH3 N 178-181
CH3 5-CH3 H H O O C 3 3
CH3 5-CH3 H CH3 O O CCH3 CCH3 N 133-136
CH3 5-CH2CH3 H H O O CC 3 3
~ H H O O CCH3 CCH3 CH 221-223
20 ~ H H H O O CH3 CH3 CH 182-186
H H O O CCH3 CH3 N 184-186
~ H H O O CCH3 CCH3 N 169-172
25 ~ H H H O O CH3 CH3 N
~ H H H O O H CH3 CCl 193-195
30 ~ H CH3 O O CCH3 OCH3 N 143-145
CH3 H H OCH3 O O OCH3 CCH3 CH
`
-
Table I (oontinued)
R2 R3 R4 Q W y X Z m P.(C)~
-CH -CH-CHCH H H H O O OCH3 CCH3 CH
Cl Cl
CF3 H H H O O OCH3 CH3 CH 135-140 (dec)
CF3 H H H o o CH3 CH3 CH 190-193 (dec)
CF3 H H H O O OCH3 CCH3 N
CF3 H H H O O OCH3 CH3 N
CF3 H H H O O CH3 CH3 N 200 (dec)
CF3 H H 3 OCH3 OCH3 N 144-148 (dec)
CF3 H H H N O OCH3 OCH3 CH
CH3
CF3 H H H N O OCH3 CH3 CH
CH3
CF3 H H H N O CH3 CH3 CH
CH3
CF3 H H CH OCH3 OCH3 N
CF3 H H H N o OCH3 CH3 N
CH3
CF3 H H H N CH3 CH3 N
CH3
CF3 ~ H CH3 N O OCH3 OCH3 N
CH3
~';.
8~;
26
Table I I
QS2Rl Y
~(S02NH~ N~ G~
R4 N Xl (CH2 ) n
Rl R2 R3 R4 Q W 1 1 n m.p. ~C)
CH3 H H H O O O H
CH3 H H H CH3
CH3 H H H O O O CCH3 1
CH3 H H H O O O H 2
CH3 H H H CH3 2
CH3 H H H O O O OCH3 2
CH3 H H H -N- O O CCH3 2
CH3
CH3 5-Cl H H CH3
CH3 5-Cl H H O O O 3
2 CH3 5-Cl H H O C 2 3
CH3 5-Cl H H O O CH2 CCH3 1
CH3 5-Cl H H O O O 3
CH3 5-Cl H H O O O CCH3 2
2 S ~CH2) 3 H3 H H O O O CCH3
(CH2) 2CH2Cl H H H O O O CCH3
,_
~ H H H O O O CCH3 1
Cl
3 0 _~> H H H OCH3
02N
_~ H H H O O O OCH3 1
- ~.
27
Table II (continued)
2 R3 _ Q W 1 1 n m.p.(C)
(CH2)2CH3 H H O O OOCH3
CH2CH2Cl H H H O O OOCH3 1
CH2CH2Cl H H H C 3
CH2CH2C1 H H H O O OOCH3 2
CH3 5-F H H O O OCCH3 1
CH3 5-C1 4-Cl H O O OOCH3 1
CH3 6-CH3 H H O O OOCH3
lQ CH3 H H H -N- O OOCH3 2
CH3
CH3 H H H -N- O O 3
CH3
CH3 H H H O S OOCH3 1
l S CH3 H H H O S CH3
CH3 H H CH3 CH3
CH3 H H CH3 O O CH2 3
CF3 H H H CH3
CH2cH2ocH3 H H CH3
CH3 H H OCH3 CH3
CH3 H H H O O CH2 OCH3 2
CH3 H H H O O O Cl
CH3 H H H O O O Cl 2
~8
Table III
QS2~1
2 ~ W N-N
~\ S02NH ~ N--~ ~ x2
R4 N
Y2
Rl R2 R3 R4 Q W 2 2 m.p.tC)
CH3 H H H O O OC 3 3
CH3 H H H O O CCH3 C 3
CH3 H H H O S OCH3 O 3
CH3 H H CH3 O O CCH3 3
15 CH3 H H H C 3 3
CH3 H H CH3 O O CH3 CH3
CH3 H H H N OCH3 CCH3
CH3
CF3 H H H 3 3
20 CH2CH20CH3 H H H O O CCH3 OCH3
H H O CCH3 CCH3
. CH3 5-Cl H H 3 3
25 CH3 5-CH3 H H o OCH3 O~H3
CH3 H H OCH3 O O C H3 3
1ti 8t;
29
Table IV
S R 50 NH ~ N ~
10 Rl R2 R3R4 Q W X2 Y2 m.p.(C)
CH3 H H H 3 3
CH3 H H H 3 3
CH3 H H H O S OCH3 CCH3
CH3 H H CH3 o C 3 3
15 CH3 H H H o CH3 CH3
CH3 H H CH3 O CH3 CH3
CH3 H H H , CCH3 C 3
CH3
CF3 H H H o CCH3 CCH3
20 CH2CH20~H3 H H H O O CCH3 3
~ H H o CCH3 CCH3
CH3 5-Cl H H 3 3
25 CH3 5-CH3 H H o OCH3 O~H3
CH3 H H O~H O 3 C 3
Formulations
Useful formulations of the compounds of Formula
I can be prepared in conventional ways. They include
dusts, granules, pellets, solutions, suspensions,
emulsions, wettable powders, emulsifiable concentrates
and the like. Many of these may be applied directly.
Sprayable formulations can be extended in suitable
media and used at spray volumes of from a few liters
to several hundred liters per hectare. High strength
compositions are primarily used as intermediates for
further formulation. The formulations, broadly, con-
tain about 0.1% to 99~ by weight of active ingre-
dient(s) and at least one of (a) about 0.1% to 20~
surfactant(s) and (b) about 1% to 99.9% solid or li-
quid diluent(s). More specifically, they will containthese ingredients in the following approximate propor-
tions:
Table`V
Weight Percent*
Active
Inqredient Diluent(s) Surfactant(s)
~ettable Powders20-90 0-74 1-10
Oil Suspensions,3-50 40-95 0-15
Emulsions, Solutions,
(including Emulsifiable
Concentrates)
Aqueous Suspension10-50 40-84 1-20
Dusts 1-25 70-99 0-5
Granules and Pellets 0.1-95 5-99.9 0-15
High Strength 90-99 0-10 0-2
Compositions
* Active inqredient plus at least one of a Surfactant
or a Diluent equals 100 weight percent.
31
Lower or higher levels of active ingredient can,
of course, be present depending on the intended use
and the physical properties of the compound. Higher
ratios of surfactant to active ingredient are some-
times desirable, and are achieved by incorporationinto the formulation or by tank mixing.
Typical solid diluents are described in Watkins,
et al., "Handbook of Insecticide Dust Diluents and
Carriers", 2nd Ed., Dorland Books, Caldwell, New
Jersey, but other solids, either mined or manufac-
tured, may be used. The more absorptive diluents are
preferred for wettable powders and the denser ones for
dusts. Typical liquid diluents and solvents are de-
scribed in Marsden, "Solvents Guide," 2nd Ed., Inter-
science, New York, 1950. Solubility under 0.1% ispreferred for suspension concentrates; solution con-
centrates are preferably stable against phase separa-
tion at 0C. "McCutcheon's Detergents and Emulsifiers
Annual", MC Publishing Corp., Ridgewood, New Jersey,
as well as Sisely and Wood, "Encyclopedia of Surface
Active Agents", Chemical Publishing Co., Inc., New
York, 1964, list surfactants and recommended uses.
All formulations can contain minor amounts of addi-
tives to reduce foaming, caking, corrosion, microbio-
logical growth, etc.
The methods of making such compositions are wellknown. Solutions are prepared by simply mixing the
ingredients. Fine solid compositions are made by
blending and, usually, grinding as in a hammer or
fluid energy mill. Suspensions are prepared by wet
milling (see, for example, Littler, U.S. Patent
3,060,084). Granules and pellets may be made by
spraying the active material upon preformed granular
carriers or by agglomeration techniques. See J. E.
Browning, "Agglomeration", Chemical_Engineering,
December 4, 1967, pp. 147ff. and "Perry's Chemical
Engineer's Handbook", 5th Ed., McGraw-Hill, New York,
1973, pp. 8-57ff.
36
32
For further information regarding the art of
formulation, see for example:
H. M. Loux, U.S. Patent 3,235,361, February 15,
1966, Col. 6, line 16 through Col. 7, line 19 and
Examples 10 through 41
R. W. Luckenbaugh, U.S. Patent 3,309,192,
March 14, 1967, Col. 5, line 43 through Col. 7, line
62 and Examples 8, 12, 15, 39, 41, 52, 53, 58, 132,
138-140, 162-164, 166, 167 and 169-182;
H. Gysin and E. Rnusli, U.S. Patent 2,891,8S5,
June 23, 1959, Col. 3, line 66 through Col. 5, line 17
and Examples 1-4;
G. C. Klingman, "Weed Control as a Science",
John Wiley & Sons, Inc., New York, 1961, pp. 81-96; and
J. D. Fryer and S. A. Evans, "Weed Control Hand-
book", 5th Ed., Blackwell Scientific Publications,
Oxford, 1968, pp. 101-103.
In the following examples, all parts are b-y
weight unless otherwise indicatéd.
Example 5
Wettable Powder
N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate 80%
sodium alkylnaphthalenesulfonate 2%
sodium ligninsulfonate 2%
synthetic amorphous silica 3%
kaolinite 13%
The ingredients are blended, hammer-milled until
all the solids are essentially under 50 microns and
then reblended.
33
Example 6
Wettable Powder
2-hydroxy-N-~(4-methoxy-6-methylpyrimidin-2-yl)amino-
carbonyl]benzenesulfonamide, methanesulfonate 50%
S sodium alkylnaphthalenesulfonate 2%
low viscosity methyl cellulose 2%
diatomaceous earth 46
The ingredients are blended, coarsely hammer-
milled and then air-milled to produce particles essen-
tially all below 10 microns in diameter. The product
is reblended before packaging.
Example 7
Granule
Wettable Powder of Example 65%
attapulgite granules 95%
(U.S.S. 20-40 mesh; 0.84-0.42 mm)
A slurry of wettable powder containing 25%
solids is sprayed on the surface of attapulgite
granules in a double-cone blender. The granules are
dried and packaged.
Example 8
.
Extruded Pellet
2-hydroxy-N-[~4-methoxy-6-methyl-1,3,5-triazin-2-yl)-
aminocarbonyl]benzenesulfonamide, methane-
25 sulfonate 25%
anhydrous sodium sulfate 10%
crude calcium ligninsulfonate 5%
sodium alkylnaphthalenesulfonate 1%
calcium/magnesium bentonite 59%
The ingredients are blended, hammer-milled and
then moistened with about 12~ water. The mixture is
extruded as cylinders about 3 mm diameter which are
cut to produce pellets about 3 mm long. These may be
used directly after drying, or the dried pellets may
35 be crushed to pass a U.S.S. No. 20 sieve (0.84 mm
openings). The granules held on a U.S.S. No. 40 sieve
(0.42 mm openings) may be packaged for use and the
fines recycled.
'
.
;86
34
Example 9
Oil Suspension
N-[ ~4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate 25%
polyoxyethylene sorbitol hexaoleate 5%
highly aliphatic hydrocarbon oil 70%
The ingredients are ground together in a sand
mill until the solid particles have been reduced to
under about 5 microns. The resulting thick suspension
may be applied directly, but preferably after being
extended with oils or emulsified in water.
Example 10
Wettable Powder
N-l(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl~-2-
hydroxybenzenesulfonamide, methanesulfonate 20%
sodium alkylnaphthalenesulfonate4%
sodium ligninsulfonate 4%
low viscosity methyl cellulose 3%
attapulgite 69%
The ingredients are thoroughly blended. After
grinding in a hammer-mill to produce particles essen-
tially all below 100 microns, the material is re-
blended and sifted through a U.S.S. No. 50 sieve (0.3
mm opening) and packaged.
,, ~ ` '
Example 11
Low Strength Granule
N-[(4,6-di~ethoxy-1,3,5-triazin-2-yl)(methyl)amino-
carbonyl]-2-hydroxybenzenesulfonamide,
S methanesulfonate 1%
N,N-dimethylformamide 9%
attapulgite granules 90%
(U.S.S. 20-40 sieve)
The active ingredient is dissolved in the sol-
vent and the solution is sprayed upon dedusted gran-
ules in a double cone blender. After spraying of the
solution has been completed, the blender is allowed to
run for a short period and then the granules are pack-
aged.
Example 12
Aqueous Suspension
N-[(4,6-dimethyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate 40%
polyacrylic acid thickener 0.3%
dodecylphenol polyethylene glycol ether 0.5
disodium phosphate 1
monosodium phosphate 0.5
polyvinyl alcohol 1.0%
water 56.7%
The ingredients are blended and ground together
in a sand mill to produce particles essentially all
under 5 microns in size.
Example 13
Solution
30 N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate,
sodium salt 5~
water 95%
The salt is added directly to the water with
stirring to produce the solution, which may then be
packaged for use.
8~;
36
Example 14
Low Strength Granule
2-hydroxy-N-[(4-methoxy-6-methylpyrimidin-2-yl)amino-
carbonyl]benzenesulfonamide, methanesulfonate 0.1%
5attapulgite granules 99~9%
(U.S.S. 20-40 mesh)
The active ingredient is dissolved in a solvent
and the solution is sprayed upon dedusted granules in
a double-cone blender. After spraying of the solution
has been completed, the mate;ial is warmed to evapor
ate the solvent. The material is allowed to cool and
then packaged.
Example 15
Granule
N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate 80%
wetting agent 1%
crude ligninsulfonate salt (containing 10
5-20% of the natural sugars)
attapulgite clay 9%
The ingredients are blended and milled to pass
throygh a 100 mesh screen. This material is then
added to a fluid bed granulator, the air flow is ad-
justed to gently fluidize the material, and a fine
spray of water is sprayed onto the fluidized ma-
terial. The fluidization and spraying are continued
until granules of the desired size range are made.
The spraying is stopped, but fluidization is con-
tinued, optionally with heat, until the water content
is reduced to the desired level, generally less than
1~. The material is then dischargecl, screened to the
desired size range, generally 14-100 mesh (1410-149
microns), and packaged for use.
~ltj~;
37
Ex am~le 16
Hi~h Strength Concentrate
N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, methanesulfonate 99%
silica aerogel 0.
synthetic amorphous silica 0.5
The ingredients are blended and ground in a
hammer-mill to produce a material essentially all
passing a U.S.S. No. 50 screen (0.3 mm opening). The
concentrate may be formulated further if necessary.
Example 17
Wettable Powder
2-hydroxy-N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-
aminocarbonyl]benzenesulfonamide,5 methanesulfonate 90%
dioctyl sodium sulfosuccinate 0.1%
synthetic fine silica 9.9%
The ingredients are blended and ground in a
hammer-mill to produce particles essentially all below
100 microns. The material is sifted through a U.S.S.
No. 50 screen and then packaged.
ExamPle 18
Wettable Powder
N-[(4,6-dimethyl-1,3,5-triazin-2-yl)aminocarbonyl]-2-5 hydroxybenzenesulfonamide, methanesulfonate 40
sodium ligninsulfonate 20
montmorillonite clay 40~
The ingredients are thoroughly blended, coarsely
hammer-milled and then air-milled to produce particles
essentially all below 10 microns in size. The
material is reblended and then packaged.
38
Example 19
Oil Suspension
2-hydroxy-N-1~4-methoxy-6-methyl-1,3,5-triazin-2-yl)-
aminocarbonyl]benzenesulEonamide,
5 l-propanesulfonate 35%
blend of polyalcohol carboxylic 6
esters and oil soluble petroleum
sulfonates
xylene 59~
The ingredients are combined and ground together
in a sand mill to produce particles essentially all
below 5 microns. The product can be used directly,
extended with oils, or emulsified in water.
Example 20
Dust
N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-
hydroxybenzenesulfonamide, l-propanesulfonate 10
attapulgite 10%
Pyrophyllite 80%
The active ingredient is blended with attapul-
gite and then passed through a hammer-mill to produce
particles substantially all below 200 microns. The
ground concentrate is then blended with powdered pyro-
phyllite until homogeneous.
39
Utilit~
The compounds of the present invention are ac-
tive herbicides. They have utility for broad-spectrum
pre- and/or post-emergence weed control in areas where
complete control of all vegetation is desired, such as
around fuel storage tanks, ammunition depots, indu-
strial storage areas, oil-well sites, drive-in thea-
ters, around billboards, highway and railroad struc-
tures. By properly selecting rate, time and method of
application, compounds of this invention may also be
used to modify plant growth beneficially, and also to
selectively control weeds in crops such as wheat,
barley, rice, corn and soybeans.
The precise amount of the compounds of Formula I
to be used in any given situation will vary according
to the particular end result desired, the amount of
foliage present, the weeds to be controlled, the crop
species involved, the soil type, the formulation and
mode of application, weather conditions, etc. Since
so many variables play a role, it is not possible to
state a rate of application suitable for all situa-
tions. Broadly speaking, the compounds of this
invention are used at levels of about 0.001 to 20
kg/ha with a preferred range of 0.01 to 10 kg/ha. In
25 general, the higher rates of application from within
this range will be selected for adverse conditions or
where extended persistence in soil is desired.
The compounds of Formula I may be combined with
other herbicides and are particularly use~ul in combi-
nation with the ureas: such as 3-(3,4-dichlorophenyl)-
l,l-dimethylurea (diuron); the triazines: such as 2-
chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine
(atrazine); the uracils: such as 5-bromo-3-sec-butyl-
6-methyluracil (bromacil) N-(phosponomethyl)glycine
(glyphosate): 3-cyclohexyl-1-methyl-6-dimethylamino-
s-triazine-2,4(lH,3H)-dione ~hexazinone); N,N-dimethyl-
2,2-diphenylacetamide ~diphenamid) 2,4-dichlorophen-
oxyacetic acid ~2j4-D) ~and closely related com-
pounds); 4-chloro-2-butynyl-3-chlorophenylcarbamate
(barban); 5-(2,3-dichloroallyl)-diisopropylthiocar-
bamate (diallate); S-(2,3,3-trichloroallyl)-diiso-
propylthiocarbamate ~triallate); 1,2-dimethyl-3,5-
diphenyl-lH-pyrazolium methyl sulfate (difenzoquat
methyl sulfate); methyl 2-[4-(2,4-dichlorophenoxy)-
phenoxy]propanoate (diclofop methyl); 4-amino-6-
tert-butyl-3-~methylthio)-1,2,4-triazin-5~4H)-one
(metribuzin); 3-(3,4-dichlorophenyl)-1-methoxy-1-
methylurea (linuron); 3-isopropyl-lH-2,1,3-benzo-
thiodiazin-4t3H)-one-2,2-dioxide (bentazon); ~,C~¢-
trifluoro-2,6-dinitro-N,N-dipropyl-~-toluidine
~trifluralin); 1,1'-dimethyl-4,4'-bipyridinium ion
(paraquat); monosodium methanearsonate (MSMA);
2-chloro-2',6'-diethyl (methoxymethyl)acetanilide
(alachlor); 1,1-dimethyl-3-(~,~L-trifluoro-m-tolyl)-
urea (fluometuron); and S-[2-chloro-4-(trifluoro-
methyl)phenoxy]-2-nitrobenzoic acid, methyl ester
(acifluorfen-methyl).
The activity of these compounds was discovered
in greenhouse tests. The tests are described and data
resulting from them are shown below.
.- ~
::
.
41
Test A
Seeds of crabgrass (Digitaria spp.~, barnyard-
grass (Echinochloa crusgalli), wild oats (Avena
fatua), cassia (Cassia tora), morningglory (Ipomoea
5 sp.), cocklebur (Xanthium spp.), sorghum, corn, soy-
bean, rice, wheat and nutsedge tubers (Cyperus rotun-
dus) were planted in a growth medium and treated pre-
emergence with the chemicals dissolved in a non-phyto-
toxic solvent solution of the compounds of Table A.
10 At the same time, cotton having five leaves (including
cotyledonary ones), bush beans with the third trifoli-
ate leaf expanding, crabgrass and barnyardgrass with
two leaves, wild oats with two leaves, cassia with
three leaves (including cotyledonary ones), morning-
glory and cocklebur with four leaves (including thecotyledonary ones), sorghum and corn with four leaves,
soybean with two cotyledonary leaves, rice with three
leaves, wheat with one leaf, and nutsedge with three-
five leaves were sprayed with a non-phytotoxic solvent
solution of the compounds of Table A. Other contain-
ers of the above mentioned weeds and crops were treat-
ed pre- or post-emergence with the same non-phytotoxic
solvent so as to provide a solvent control. A set of
untreated control plants was also included for compa-
rison. Pre-emergence and post-emergence treated
plants and controls were maintained in a greenhouse
for sixteen days, then all treated plants were com-
pared with their respective controls and rated visu-
ally for response to treatment.
The following rating system was used:
0 = no effect
10 = maximum effect
C = chlorosis or necrosis
D = defoliation
E = emergence inhibition
8~;
42
G = growth retardation
H = formative effects
U = unusual pigmentation
6Y = abscised buds or flowers
P = terminal bud kill
8 = burn
~ t~
43
Comeound 1
~/ 2 3 OC H 3
S ~\S02NH~NH~ (~
OCH3
Compound 2
2 3 OCH3
~ S 2 N H ~ N H ~ ~
N
CH3
Compound 3
[~0502CH3
N
CH3
Compound 4
~ 2 3 OC H 3
~52NH~NH~
OCH3
44
Compound 5
OSO CH
~ / 2 3 OCH3
5 S02NH ~ NH ~ (~
CH3
Compound 6
10 S2c 3 CH3
NH~
N ~<
CH3
ComPound 7
~OSO2C 3 OCH
C 3 --(
OCH3
Compound 8
~ OS02CH2CH3 OCH3
~\S02NH ~ NH~
OCH3
Compound 9
~ 2 2 3 OCH
N
CH3
Compound 10
10OSO2CH2CH3 CH3
52NH ~ NH ~ ~
15CH3
Compound 11
~ oso2CH2cH2c 2 3 OCH3
SO2NH ~ NH
N ~
OCH3
Compound 12
OS02CH2CH2CH2CH3 CH
~ 52NH ~ NH ~ ~
CH3
.
'
~6
Com~ound 13
OSO2CH2CH2 2 3 O H3
S 2 N H ~ N H ~ O N
N ~
OCH3
Compound 14
OSO2CH2CH2CH2 3 OCH3
SO2NH~ NH~ O N
N ~
CH3
Compound 15
~oso2cH2cH2cH2cH3 Cl
1 O 1 O N~
\~\so2NHi~NH--< O~
C 1
Compound 16
OSO2CH2CH2CH2CH3 CH
I O I O N~
~\SO2NH~ NH~O~
47
Compound 17
/ ~ O 2C 3 OCH
N
OCH3
Compound 18
~ S2c 3 OCH3
SO2NH ~ NH
N ~
~3
Compound 19
Cl 0502CH3
N
CH3
_mpound 20
OSO2CH3
OCH3
. . ,
48
Compound 21
5 C 1 50 2 N H~ N H--~; O N
CH3
Compound 22
~ N $
N
H
Compound 23 A
~ OS 2 ~ N ~ OCH3
S02NH --~ 0
N ~
OCH3
Compound 24 r -\
~ ~ / 33
N
CH3
1~ 8~
49
Compound 25 t--~
~ 5O2NU ~ NH
N
CH3
Compound 26 r-~~
5O2NH ~ NH ~ O N
N ~
CH3
Compound 27
~ S2 ~ OCH3
~ SO2NH ~ NH ~ O N
OCH
ComPound 28
~ S2 ~ CH3
I O I O N ~
30 ~ SO2NH ~ NH ~ O ~ Cl
N ~
H
~ ' ' ~ '' '
,
.
.
Com~ound 29 A
~oso2~o~ OCH
CH3 N~
OCH3
Compound 3 0
, 10 . S2c 3OCH3
CH3 SO2NH~NH~ O~
N--~
. OCH3
Compound 31
C~sO NHJ~NH--( o$
CH3
Compound 32
30 C~0502CH3 H
H3
51
Compou nd 3 3
5 C~ SOz N H ~ N H--< 0
CH3
Compound 34
~ S2c 3 OCH3
CH/3 S02NH ~ NH ~ O N
N -\
OCH3
Compound 35
~ OSO2C 3 OCH
CH3 ~ N~
OCH3
Compound 36
50 NH ~ NH ~ ~
OCH3
8~
52
Compound 37
~ S O N U ~ N H ~
CH3
Compound 38
oso2CH2c 2 3 CH3
[~ S02NH~ NH~
N
15 CH3
Compound 39
oSO2CH2CH2CH3 OCH3
20~S2NH~ NH--<~
N ~<
CH3
Compound 40
~0502CH2cH2cH 3
30N \
12i~:1686
53
Compound 41
OCH3
~--S0 2NHCN H ~
Cl 2 3 OCH3
10 ComPound 4 2
OC H 3
~02NHCNH--< 0 ~
Cl S2c 3 OCH3
Compo u n d 4 3
Cl OCH3
2 0 ~ o N--~
~SO2NHCNH~ O~N
Cl S2cH3 CH3
Compound 4 4
Cl OCH 3
3o ~SO2NHCNH~
Cl S2cH3 OCH3
-
': . , - ' ' .. ' , '
.
'
54
Table A
Cmpd. 1 Cmpd. 2 Cmpd. 3 Cmpd. 4
5 Rate kg/ha 0.1 0.1 0.1 0.1
POST-EMERGENCE
Bush bean 9C 9C 9C 9C
Cotton 10C 9C 10C 9C
Morningglory 10C 10C 10C 10C
Cocklebur 10C 10C 9C 10C
Cassia 9C 9C 9C 9C
Nutsedge 9C 9C 9C lC,5G
Crabgrass 9C 9C 9C 4C,9G
Barnyardgrass 10C 10C 10C 4C,9H
Wild Oats 2C,9G 4C,9G 5C,9G 0
Wheat lC,2G 5C,9G 5C,9G 0
Corn 5C,9G 9C 9C 4U,9G
15 Soybean 9C 9C 9C 9C
Rice 9C 9C 9C 9C
Sorghum 9C 10C 9C 2C,9H
PRE-EMERGENCE
Morningglory 9G 9G 9C 9C
Cocklebur 9H 9H 9H 9H
Cassia 9C ` 5C,9G 6C,9G 6C,9G
Nutsedge 10E 10E 10E lC,7G
Crabgrass 9C 6C,9G 2C,8G 2C,5G
Barnyardgrass 5C,9H 9C 3C,9H 7C,9H
Wild Oats lU,9G 5C,9H 4C,9H 8G
Wheat 5G 5C,9H lC,9H 3G
Corn 2U,9G 10E 10E 3C,9H
Soybean 9H 9H 9H 9H
Rice 10E 10E 10E 10E
Sorghum 7C,9H 6C,9H 10H lC,9G
1~1686
Table A ~continued)
Cmpd. 5 Cmpd. 6 Cmpd. 7
5 Rate kg/ha 0.1 0.1 0.1
POST-EMERGEN OE
Bush bean 9C 9C lC,2G
Cotton 9C 9C 9C
Morningglory 10C 10C 9C
Cocklebur 9C 9C 9C
Cassia 9C 6C,9G 5C,9G-
Nutsedge 5G lC,5G 2C,5G
Crabgrass 2C,9G 9C 3G
Barnyardgrass 5C,9H 9C 0
Wild Oats . lC,4G 3C,9G 0
WchOerant 06C,9G 16CC,9H 3C,9H
15 Soybean 9C 9C 9C
Rice 9C 9C 6G
Sorghum 2C,9H 6C,9G lC,3G
PRE-EMERGENCE
Morningglory 9C 9C lC,3G
Cocklebur 9H 9H 8H
Cassia 6C,9G 6C,9G 2C,2H
20 Nutsedge lC,6G 6G
Crabgrass 2C,6G lC,6G 0
Barnyardgrass 2C,9H 7C,9H 0
Wild Oats lC,7G 3C,9G 0
Wheat 0 8G 0
Soybean 9HH 9H lGC,2H
25 Rice 10E 10E lC
Sorghum 5C,9H 7C,9H 0
- : -.
'
1686
56
Table A (continued)
Cmpd. 8 Cmpd. 9 Cmpd. 10 Cmpd. 11
Rate kg/ha 0.05 0.05 0.05 0.05
PO ST - EME RGENCE
Bush bean 10G,9C 9G,3H,6C 7G,3H,7C 2C,2H
Cotton 10G,9C 10G,8C 10G,8C 3C,2H,6G
Sorghum 10G,4C 10C 10G,9C 0
Corn 7G,5H 10G,8C 10G,3H 0
Soybean 10G,7C 10G,8C 7G,7C 2H,6G
Wheat 0 3C,2C 3G,2C 0
Wild Oats 0 9G,3C 10G,6C 0
Rice 8G,3C 10C 10C lC
Barnyardgrass 10G,6C 10C 10G,9C 2H
Crabgrass 0 8G,3C 0 0
Morningglory 10G,9C 7G,9C 10G,SC 9C
Cocklebur 10G,9C 10C 10G,7C 3C,9G
Cassia 10C 10G,8C 10G,8C 0
Nutsedge 10G,7C 10G,6C 10G,7C 0
PRE-EMERG~NCE
Sorghum 8G,5G 9G,9C 9G,9C 0
Corn 6G 9G 9G,9C 0
Soybean 8G,5H 9G,5H 8G,5C 0
Wi;d Oats 05G,3H 78GG,3C 7G,5H 0
Rice 8G,6C 8G,8C 10E 3G
Barnyardgrass 8G,5H 9G,6C 8G,5H 0
Crabgrass 3G 5G,3H 3G 0
Morningglory 8G,5C 8G,9C 8G,9C 7G
Cocklebur 8G,3H 9G,9P 9G,9P 5H
Cassia 9G,5C 9G,9C 8C,9G 0
Nutsedge 10E 10E 10E 0
, '
-, . .
8~;
57
Table A (continued)
Cmpd. 12 Cmpd. 13 Cmpd. 14 Cmpd. 15
5 Rate kg/ha 0.05 0.05 0.05 0.1
POST-EMERGENCE
Bush bean lC,2H 6C,9G,6Y 6C,9G,6Y 0
Cotton lC 3C,3H,9G 3C,3H,9G 0
Sorghum 6H 0 0 0
Corn 0 0 0 0
Soybean lH 2H,6G 2H,5G 0
Wheat 0
Wild Oats 0 0 0 0
Rice 0
Barnyardgrass 0 0 0 0
Crabgras3 0 0 0 0
Morningglory lC,5G 4C,9H 3C,9H 0
Cocklebur lC 4C,9H 2C,8G 0
Cassia 0 3C lC 0
Nutsedge 0
PRE-EMERGENCE
Sorghum 0 0 0 0
Corn 0 0 0 0
Soybean 0 0 0 0
Wheat 0 0 0 0
Wild Oats 0 0 0
Rice
Barnyardgrass 0 0 0 0
Crabgrass 0 0 0
Morningglory 0 3C,9G 4C,9G 0
Cocklebur 0 8H,3C 7H,3C 0
25 Cassia 0 2C 0 0
Nutsedge 0
58
Table A (con~inued)
Cmpd. 16 Cmpd. 17 CmpdO 18 Cmpd. 19
5 Rate kg/ha 0.1 0.05 0.05 0.05
POST-EMERGENCE
Bush bean 0 3C,5G,6Y 9C,7G 6C,7G,6Y
Cotton 0 7C,6G 8C,7G 9C,6G
Sorghum 0 3C,4G 2C,4G 2C,4G
Corn 0 4C,3U,4G 5C,6G 0
Soybean 6C,7G 10C 7C,6G
Wheat 0 0 0 2C,2G
Wild Oats 0 2C 3C,4G 3G
Rice 0 2C,3G 3C,4G 3C,5G
Barnyardgrass 0 10C 7C,6G 2C,3G
Crabgrass 0 2C,3G 0 0
Morningglory 0 10C 5C,4G 10C
Cocklebur 0 10C 8C,7G 10C
Cassia 0 8C,7G 3C,4G 3C,4G
Nutsedge 0 10C 6C,4G 5C,4G
PRE-EMERGENCE
Sorghum 0 3C,6G 5C,8G 7C,7G
Corn 0 3C,6G 7C,6G 0
Soybean 0 7C,8G 7C,8G 7C,6G
20 Wheat 3C,5G 0
Wild Oats 0 2C 7C,6G 2C,6G
Rice 0 10E 8C,8G 8C,7G
Barnyardgrass 0 7C,8G 7C,7G 7C,5G
Crabgrass 0 2C,2G 3G,2C 0
Morningglory 0 7C,7G 10C 7C,6G
Cocklebur 0 8C,7G 3C,5G 5C,6G
Cassia 0 8C,8G 7C,6G 5C,4G
Nutsedge 0 10E 10E 10E
59
Table A (continued)
Cmpd. 20 Cmpd. 21 Cmpd. 22 Cmpd. 30
s Rate kg/ha 0.05 0.05 0.1 0.05
POST-EMERGENCE
Bush bean 2G 9C,6G,6Y 3C,4G,6Y 3C,9G,6Y
Cotton 5C,4G 9C,5G 0 5G,9G
Sorghum 4C,SG 6C,5G 0 lOC
Corn 10C 7C,6G 0 10C
soybean 4C,5G 5C,6G 0 2C,9G
Wheat 0 2C,3G 0 9C
Wild Oats 4C,5G 8C" G 0 2C,8G
Rice 3C,4G 2C,3G 0 10C
Barnyardgrass 7C,6G 10C 0 10C
Crabgrass 2C,2G 7C,6G 0 6C,9G
Morningglory 10C 10C 0 9C
Cocklebur 10C 10C 0 9C
Cassia 2C 5C,3G 0 9C
Nutsedge 0 3C,4G 0 9C
PRE-EMERGENCE
Sorghum 7C,8G 7C,8G 0 lC,9H
Corn 7C,8G 8C,8G 0 lC,9G
Soybean 6C,7G 7C,6G 0 ` lC,9G
20 Wheat 0 9G
Wild Oats 2C,5G 5C,6G 0 8G
Rice 10E 10E 0 10E
Barnyardgrass 7C,7G 8C,8G 0 5C,9H
Crabgrass 4C,5G 5C,7G 0 2C,8G
Morningglory 10C 10C 0 9G
Cocklebur 10C 10C 0 9H
Cassia 5G,6C 7C,6G 0 2C,9G
Nutsedge 0 7C,5G 0 10E
8~;
Table A (continued)
Cmpd. 31 Cmpd. 32 Cmpd. 33 Cmpd. 34
Rate kg/ha 0.05 0.05 .S 0.05
POST-EMERGENCE
Bush bean 9C 9D,9G,6Y 9D,9G,6Y 4C,6G,6Y
Cotton 6C,9G 3H,6C,9G 6C,9G 3H,6C,9G
Sorghum 2C,9G 9C 3C,9G lC,6H
Corn 7U,9G lC,9G 3U,9G lC,SG
Soybean 4C,9G 5C,9G 3C,9G 2C,9G
Wheat 2C,7G 9C lC,3G 0
Wild Oats lC,8G 9C lC,2G 0
Rice 3C,9G 9C 2C,9G 8G
Barnyardgrass 9C 10C .lOC 3C,7H
Crabgrass 6G 2C,5G lC,3G lC,3G
Morningglory 10C 10C 3C,9G 9C
Cocklebur 10C 9C 6C,9G 6C,9G
Cassia 9C 9C 3C,7G 3C,5G
Nutsedge lC,9G 4C,9G 2C,7G lC,3G
PRE-EMERGENCE
Sorghum 4C,9G 3C,9H 2C,9G 2C,7G
Corn 2C,9G 2C,9H lC,9G lC,8G
Soybean 8H 3C,7H 9H lC,9H
20 Wheat 9G 3C 0 0
Wild Oats 2C,9H lC,9G lC,5G 0
Rice 2C,9H 10E 9H 2C,5G
Barnyardgrass 2C,9H 2C,9H 3C,8H lC,5H
Crabgrass 2C,9G lC,3G lC,3G 0
Morningglory 9C 9G lC,9H 2C,9G
Cocklebur 9H 9H 9H 9H
Cassia 2C,9G 2C,9G 9G,3C 6C,9G
Nutsedge 10E 10E lC,9G 3G
30
12~1~8~;
61
Table A (co tinued)
Cmpd. 35 Cmpd. 36 Cmpd. 37 Cmpd. 38
5 Rate kg/ha 0.1 0.05 0.05 0.05
POST-EMERGENCE
Bush bean 2G 5C,9G,6Y 9C 4C,9G,6Y
Cotton 3C, 3H, 7G 9C 9C 5C,9G
Sorghum lC,3G 9C 3U 10C
Corn 0 lC,2G 2C 2C,4G
Soybean 2C,9G 2C,8G 2C lH,6G
Wheat
Wild Oats 0 2G lC SG
Rice 0 4C,9G 2C 7G
Barnyardgrass 0 3C,9H 10C 3C,7H
Crabgrass 0 2C,4G 3C 2C,5G
Morningglory 6C,9G 9C 9C 2C,9G
Cocklebur 4C,9G 10C 10C 9C
Cassia 2C 5C,9G 5G
Nutsedge lC,2G 9G lC 8G
PRE-EMERGENCE
Sorghum 0 2C,9H 2C,9H 2C,9H
Corn 0 2C,5G 2C,8H 2C,7H
Soybean 0 lC,4H 2C,5G 2G
20 Wheat 0 3G 0
Wild Oats 0 lC,6G lC,8G lC,65
Rice 0 3C,9H 2C,8H 2C,6G
Barnyardgrass 0 2C,8H 2C,9H 3C,5G
Crabgrass 0 lC lC,3G lC
Morningglory 0 9G 9G lC,6G
Cocklebur 0 9H 9H 9H
Cassia 0 2C,8G 2C,8H lC
Nutsedge 0 9G 9G 5G
:12~
62
Table A (continued)
-
Cmpd. 39 Cmpd. 40 Cmpd. 23 Cmpd. 24
5 Rate kg/ha 0.05 0.4 0.05 0.05
POST-EMERGENCE
Bush bean 9C 0 3G lH
Cotton 9C lC 0 0
Sorghum lC 4G 0 2G
Corn lC 0 0 3G
10 Soybean lH 0 7G lH
Wheat 0 0 0 0
Wild Oats 2G 0 0 0
Rice 0 2G 0 4G
Barnyardgrass 2G 0 0 0
Crabgrass lC 5G 0 3G
Morningglory 9C 3G 0 2G
15 Cocklebur 10C 3G 2G lC
Cassia 0
Nutsedge 2G 3G 0 0
PRE-EMERGENCE
Sorghum lC,7G 0 0 4H
Corn lC,3G 0 0 0
Soybean lC lH lH lC,lH
20 Wheat
Wild Oats 0 0 0 0
Rice 2C 0 0 2C
Barnyardgrass lC,4H 0 0 0
Crabgrass lC 2G 0 lC
Morningglory 9G 3G 0 0
Cocklebur 9H SH 0 2C
25 Cassia 2C,9H 0 0 0
~utsedge 2G 0 0 3G
63
Table A (continued)
.
Cmpd. 25 Cmpd. 26 Cmpd. 27 Cmpd. 28
5 Rate kg/ha 0.05 0.05 0.05 0.4
POST-EMERGENCE
Bush bean 0 3C,9G,6Y lC,2G,6Y 0
Cotton O 2C lC 0
Sorghum 0 0 3G 0
10 Corn 2C,3G lC 0
Soybean 0 2H 2H 0
Wheat 0 0 0 0
Wild Oats 0 0 0
Rice 0 0 4G 0
Barnyardgrass 0 0 0 0
Crabgrass 0 0 lC 0
Morningglory 0 2C,6H lC 3B
Cocklebur 0 2C,6G 3C,6H 0
Cassia 0
Nutsedge 0 0 lC 0
PRE-EMERGENCE
Sorghum 0 0 0 0
Corn
20 Soybean 0 0 0 0
Wheat
Wild Oats 0
Rice
Barnyardgrass 0 0 0
Crabgrass 0 0 0 0
Morningglory 0 0 0
Cocklebur 0 0 9H 0
25 Cassia
Nutsedge 0 0 0
64
Table A (continued)
Cmpd. 29 Cmpd. 41 Cmpd. 42
5 Rate kg/ha 0.05 0.4 0.4
POST-EMERGENCE
Bush bean 0 9C 9C
Cotton 0 10C 4C,3H,9G
Sorghum 0 6U,9G 2C,9G
Corn 0 2U,9H 5U,9G
Soybean 0 9C 9C
Wheat 0 2G 0
Wild Oats 0 lC,8G 0
Rice 0 6C,9G 6C,9G
Barnyardgrass 0 5C,9H lC,6G
Crabgrass 0 2C,6G 4G
Morningglory lC,2G 6C,9G 6C,9G
15 Cocklebur 0 10C 9C
Cassia 9C 4C,7H
Nutsedge 0 2C,8G 2C,5G
PRE-EMERGENCE
Sorghum 0 5C,9H 5C,9G
Corn 0 2U,9G 2C,9G
20 Soybean 0 9H 4C,8H
Wheat 0 8G 2C,8G
Wild Oats 0 4C,8G 2C,8G
Rice 0 10E 10E
Barnyardgrass 0 4C,9H 4C,9G
Crabgrass 0 5G lC,4G
Morningglory 0 9C 9C
Cocklebur 0 9H 9H
Cassia 0 4C,9G 3C,7G
Nutsedge 0 lC,9G 8G
Table A (continued~
Compound 43 Compound 44
5 Rate kg/ha 2 6 2 6
POST-EMERGENCE
Bush bean 0 3C 0 0
Cotton 0 3C 0 2C
Sorghum 0 0 0 2C
10 Corn 0 0 0 0
Soybean 0 lC 0 3G
Wheat
Wild Oats 0 0 0 0
Rice
Barnyardgrass 0 lC 0 0
Crabgrass 0 0 0 0
Morningglory 0 0 0 lC/3G
15 Cocklebur 0 0
Cassia 0 lC 0
Nutsedge 0
PRE-EMERGENCE
Sorghum 0 lC,5G 0 2C
Corn 0 2C,5G 0 lC,2G
2 Soybean 0 0 0 0
Wheat 0 0 0 0
Wild Oats 0 lC,4G 0 0
Rice 0 lC 0 lC
Barnyardgrass 0 5C,8H 0 5C
Crabgrass 0 2G 0 0
Morningglory 0 3C 0 2C
Cocklebur 0 2C,8H 0 SH
25 Cassia 0 3G 0 SG
Nutsedge 0 0 0 0
It is noted that certain compounds such as 15,
16, 22-25, 28 and 29 show little if any activity at
the levels tested. It is thought that they would
demonstrate herbicidal activity at higher rates.
l~lt~
66
Test B
Two plastic bulb pans were filled with ferti-
lized and limed Fallsington silt loam soil. One pan
was planted with corn, sorghum, Kentucky bluegrass and
several grassy weeds. The other pan was planted with
cotton, soybeans, purple nutsedge (Cyperus rotundus),
and several broadleaf weeds. The following grassy and
broadleaf weeds were planted: crabgrass (Digitaria
sanguinalis), barnyardgrass (Echinochloa crusqalli),
wild oats (Avena fatua), johnsongrass (Sorghum hale-
pense), dallisgrass (Paspalum dilatatum), giant fox-
.
tail (Setaria faberii), cheatgrass (Bromus secalinus),mustard (Brassica arvensis), cocklebur (Xanthium
pensylvanicum), pigweed (Amaranthus retroflexus),
morningglory (Ipomoea hederacea), cassia (Cassia
.
tora), teaweed (Sida spinosa), velvetleaf (Abutilon
theophrasti), and jimsonweed (Datura stramonium). A
12.5 cm diameter plastic pot was also filled with pre-
pared soil and planted with rice and wheat. Another
12.5 cm pot was planted with sugarbeets. The above
four containers were treated pre-emergence with
several test compounds within the scope of the
invention.
Twenty-eight days after treatment, the plants
25 were evaluated and visually rated for response to the
chemical treatments utilizing the rating system de-
scribed-previously for Test A. The data are summar-
ized in Table B.
67
Table 8
PRE-EMERGENCE ON
FALLSINGTON SILT LOAM
Compound 1 Compound 2
Rate kg/ha 0.03 0.12 0.03 0.12
Crabgrass 7G,2H 8G,3H 7G,3H 8G,3H
Barnyardgrass 8G,3H 9G,9C 9G,8C 10C
Sorghum 9G/9C 10C 10C 10E
Wild Oats 6G 10C 8G,5C 9G,9C
Johnsongrass 8G,7C 10C 9G,9C 10C
Dallisgrass 7G 9G,9C 8G,3H 8G,3H
Giant foxtail 6G,3C 8G,5C 5G,3C 10C
Ky. bluegrass 8G,9C 10C 8G,9C 10C
Cheatgrass 8G,9C 9G,9C 10E 10E
Sugarbeets 10C 10C 10C 10C
Corn 5G,3U 8G,5H 7G"H 10C
Mustard 10C 10C 10C 10C
Cocklebur 6G - 5G 10C
Pigweed 10C 10E 7G 10E
Nutsedge 10E 10E 6G 10E
Cotton 8G 9G,5C 6G,3H 9G,8C
Morningglory 5G 9G,9C 7G 9G,5C
Cassia 8G,8C 10C 7G,4C 9G,9C
Teaweed 6G 9G,8C 6G,3H 8G,6C
Velvetleaf 9G,8C 10C 8G,8C 9G,9C
Jimsonweed 7G,3C 9G,8C 9G,9C 9G,9C
Soybean 8G,5H 9G,8C 7G,5H 9G,8C
Rice 8G,3H 10E 8G,7C 10E
Wheat 0 3G 5G 8G,9C
68
Table B (continued)
PRE-EMERGENCE ON
FALLSINGTON SILT LOAM
S
Compound 3
Rate kg/ha 0.007 0.015 0.03 5.12
Crabgrass 0 0 5G 6G
Barnyardgrass 2G 2G 8G,3H 9G,9C
Sorghum 2G 4G 10C 10E
Wild Oats 0 0 10C 10C
Johnsongrass 0 3G 10C 10C
Dallisgrass 0 3G 6G 8G,3H
15 Giant foxtail o 3G 3C 7G,3C
Ky. bluegrass 0 2G 10C 8G,8C
Cheatgrass 0 - 10E 10E
Sugarbeets - 4G 10C 10C
Corn 0 0 10C 10C
Mustard 5G 7G,3C 10C 10C
Cocklebur 0 0 7G 8G,5H
Pigweed 0 10E 9G,9C 10C
20 Nutsedge 0 0 10E 10E
Cotton 0 0 8G,3C 9G,7C
Morningglory 3G 3G 8G 9G,7C
Cassia 0 0 9G,8C 9G,8C
Teaweed - 0 4G 10C
Velvetleaf 0 0 8G,5E 9G,8C
Jimsonweed 0 0 8G,8C 9G,9C
25 Soybean o o 8G,5H 9Gj8C
Rice 3G 6G,3H 10E 10E
Wheat 0 0 5G 7G,3C
69
Table B (continued)
PR~-EMERGENCE ON
FALLSINGI'ON SILT I.OAM
Compound 36 Compound 39
Rate kg/ha 0.06 0.25 0.06 0.25
Crabgrass 2G 4G 2G 2G
Barnyardgrass 4G 6G,SH 4G 5G
Sorghum 6G,3H 8G,5H 4G 4G,2H
Wild Oats 4G 4G 3G 3G
Johnsongrass 4G,3H 6G,3H 4G 3G
Dallisgrass 4G 5G 3G 0
Giant foxtail 4G 6G,3H 0 2G
Ky. bluegrass 6G 7G 2G 4G
Cheatgrass 6G 7G 0 3G
Sugarbeets 6G,6C 8G,9C 9G,8C 10C
Corn 3G 4G 2G 4G
Mustard 10E 10E 8G,8C 8G,9C
Cocklebur - 8G,7C 8G,5H 10C
Pigweed 5G,5C 9G,9C 4G 6G,4C
Nutsedge 7G 10E 4G 6G
Cotton 4G 8G,3H 8G,3H 9G,5C
Morningglory 4G 8G,9C 9G 9G,3C
Cassia 6G 8G,8C SG,3C 7G,8C
Teaweed 5G,3C 6G,3C 6G,2C 6G,3C
Velvetleaf 5G,3H 8G,8C 7G,3H 8G,9C
Jimsonweed 3G 5G,5C 7G,3C 8G,5C
Soybean 2G 5G,3H 3G 4G
~ice 3G SG 0 0
Wheat 0 0 0 0
Test C
The high herbicidal activity of two of the com-
pounds from within the scope of the invention is evi-
dent from the results obtained in this test. The
experiment concerned pre-emergence applications on
soil. The containers used were 25 cm diameter plastic
pots filled with Fallsington silt loam. One set of
pots was planted to weeds, the seeds of which were
uniformly mixed with the top 1~2 cm layer of soil.
The species selected were: johnsongrass (Sorghum
halepense), barnyardgrass (Echinochloa crusgalli),
crabgrass ~Digitaria sanguinalis), giant foxtail
(Setaria faberii), velvetleaf (Abutilon theophrasti),
jimsonweed (Datura stramonium), mustard (Brassica
arvensis), and pigweed (Amaranthus retroflexus). Ano-
ther set of pots was planted to the following crops
with from one to four species per pot: corn (planting
depth 3.7 cm), cotton, soybeans, sunflower, Clinton
oats, wheat, Black Valentine beans, rice, sorghum,
peas, flax, and peanuts (all at 2.5 cm depth), cucum-
bers, cabbage, alfalfa, safflower, sugarbeets, tomato,
spinach, barley, and Kentucky bluegrass (all at 1.2 cm
depth). Immediately afte; planting, the test chemical
was applied to the soil surfaces dissolved in a non-
phytotoxic solvent. One pot from the weed phase andone of each of the crop species were left untreated
for the purpose of comparison. The treated and un-
treated pots were promptly watered with approximately
4 mm of simulated rainfall and then held in a green-
house for several weeks. Visual weed and crop re-
sponse ratings were made 28 days after treatment
utilizing the rating system as described above for
Test A. The data are given in Table C.
86
71
Table C
PRE-EMERGENCE ON
FALLSINGTON SILT LOAM SOIL
Compound 1
Rate kg/ha 0.0035 0.0075 0.0150 0.03
Corn 5G,3C
10 Cotton 7G,3H
Soybean 4G,2H
Peanut 6G
Sunflower SG
Oats 4G
Wheat 2G
Sorghum 7G,5H
Sugarbeet 9G,9C
15 Pea 10E
Flax 6G
Alfalfa 8G,6C
Bean
Spinach 8G,5H
Cabbage 8G,6C
Tomato 4G
20 Rice 6G
Safflower 7G,4C
Cucumber 5G
Ky. bluegrass 7G
Barley 3G
Broadleaves 3G 4G 6G,2H
Grasses 0 0 2G
;8~
72
Table C (continued)
PRE-EMERGENCE ON
FALLSINGTON SILT LOAM SOIL
Compound 2
Rate kg/ha 0.0075~.015 0.030 0.06
Corn 9G,9C
Soybean 9G,5H
Oats 6G 2cH
Sorghum 10GoE
15 Sugarbeet 1 E
Bean 889GG,,65Cc
Cabbage 58lGcoÉ78G
Safflower 8G,7C
Cucumber G,5H
Barley 68GG 7HC
Broadleaves 5G,3C 7G,5C 9G,8C
Grasses 6G,3C8G,4C 9G,6C
- ' , ' ' .
- ~ . '
- - . - '
8~;
Test D
Two ten-inch in diameter plastic pans lined with
polyethvlene liners were filled with prepared Fall-
sington silt loam soil. One pan was planted with
seeds of wheat (Triticum aestivum), barley (Hordeum
vulgare), wild oats (Avena fatua), downy brome (Bromus
tectorum), cheatgrass (Bromus secalinus), biackgrass
(Alopecurus myosuroides), annual bluegrass (Poa
annua), green foxtail (Setaria viridis), quackgrass
(Agropvron repens), Italian ryegrass (Lolium multi-
florum) and ripgut brome (Bromus rigidus). The other
pan was planted with seeds of Russian thistle (Salsola
kali), tansy mustard (Descuraina ~innata), smartweed
(Polygonum pensYlvanicum), tumble mustard (Sisymbrium
altissium) kochia (Kochia scoParia), shepherd's purse
(Capsella bursa-pastoris), Matricaria inodora, black
nightshade (Solanum nigrum), yellow rocket (Barbarea
vulqaris), wild mustard (Brassica kaber) and wild
buckwheat (PolYqonum convolvulus). The above two pans
were treated pre-emergence. At the same time two pans
in which the above plant species were growing were
treated post-emergence. Plant height at the time of
treatment ranged from 1-15 cm depending on plant
species.
The compounds applied were diluted with a non-
phytotoxic solvent and sprayed over-the-top of the
pans. An untreated control and a solvent alone con-
trol were included for comparison. All treatments
were maintained in the greenhouse for 20 days at which
time the treatments were compared to the controls and
the effects visually rated. The recorded data,
presented in Table D, indicate that certain compounds
from within the scope of the invention have utility
for pre- and/or post-emergence weed control in cereal
crops such as wheat and barley.
-
,
74
Table D
Compound 1
Rate kg/ha 0.002 0.008 0.008 0.015
Pre-Emergence
wheat 0
barley 0 0 0 lC,6G
wild oats. 0 0 0 3C,7G
downy brome 3G 2C,5G lG SC,7G
cheatgrass 5G 4C, 7G 3G lOC
blackgrass 3G 5C,6G 2G lOC
annual bluegrass 5G 2C,6G lC,2G 7C,8G
green foxtail 0 2G 3C,4G 3C,5G
quackgrass 3G 3C, 5G O 8G
Italian ryegrass 0 3C,5G O 4G
ripgut brome 2G 2C, 4G O 2C, 5G
Russian thistle 0 0 lG 8C,7G
tansy mustard 6G 8C,8G 8C,8G lOC
smartweed
tumble mustard 3C, 8G lOC 7C, 7G lOC
kochia lG 5G 3G 9C, 8G
shepherd's purse 3C,5G 8C,8G 9C,8G lOC
Matricaria inodora 4G 7C,8G 7C,7G lOC
black nightshade 2C,4G 4C,6G 6C,7G 8G
yellow rocket 2C, 7G 4C, 8G 7C, 7G lOC
wild mustard 5C,6G 8C,8G 7C,7G lOC
wild buckwheat 3G 2C,4G lC,2G 3C,6G
Table D ~continued)
Compound 1
5 Rate kg/ha 0.002 0.008 0.008 O.OlS
Post-Emergence
wheat O
barley O O 0 3C,5G
10 wild oats O lC 0 3C, 2G
downy brome 3G 5C,7G 4C,SG 3G
cheatgrass 4C,7G 8C,7G 8C,7G lOC
blackgrass 6G 4C,5G 7C,7G lOC
annual bluegrass 3G 3C,6G 3C,5G 5C,4G
- green foxtail 4G 7C,7G 7C,7G 3C,4G
quackgrass 3G 6G 2C,3G 6C,5G
Italian ryegrass 2G 2G 0 3G
15 ripgut brome 2G 5G 0 2G
Russian thistle 2C,3G lOC 9C,7G lOC
tansy mustard lOC lOC lOC lOC
smartweed
tumble mustard 4C, 6G lOC lOC lOC
kochia 3G 4G lOC 8C,7G
shepherd's purse lOC lOC lOC lOC
Matricaria inodora 7C,7G lOC 9C,7G lOC
20 black nightshade 4G 4C,6G lC,lG 0
yellow rocket 3G lOC lOC lOC
wild mustard lOC lOC lOC lOC
wild buckwheat 2C,4G 5C,5G 6C,5G lOC
76
Table D (continued)
Compound 1
Pre-Emergence Post-Emergence
Rate kg/ha 0.03 0.06 0.03 0.06
wheat 0 2C,3G 0 lC,2G
barley lC,lG 6C,8G 2C,2G 7C,6G
wild oats 0 8C,8G 2G 3C,3G
downy brome 2C,7G lOC 7C,7G 3C,4G
cheatgrass 5C,8G lOC lOC lOC
blackgrass - 3C,7G lOC lOC lOC
annual bluegrass 5C,7G lOC 6C,7G lOC
green foxtail 7C,7G 9C,8G 7C,8G 7C,6G
quackgrass 2C,3G lOC 3C,6G 7C,6G
Italian ryegrass lC, 3G 4C,7G 2C,4G 4C, 5G
ripgut brome 0 5C, 7G 2C, 3G 3C, 5G
15 Russian thistle 2C,3G 8C,8G lOC lOC
tansy mustard lOC lOC lOC lOC
smartweed - - - -
tumble mustard lOC lOC lOC lOC
kochia 7C, 8G lOC lOC lOC
shepherd's purse lOC lOC lOC lOC
Matricaria inodora 7C,8G lOC 9C,8G lOC
black nightshade 7C, 7G 3C,8G 3C,7G 4C,5G
20 yellow rocket 8C,9G lOC lOC lOC
wild mustard 8C,8G lCC lOC lOC
wild buckwheat 3C,4G 4C,8G 7C,6G lOC
'
~ ' '.' ' - :. ~ -
- . :
,- , -
: .
8~
77
Table D (continued)
Compound 2
S Rate kg/ha 0.002 0.008 0.008 0.015
Pre-Emergence
wheat O O 0 2C,2G
barley 0 3G 3C,4G 5C,7G
wild oats 0 2C, 5G 2G 8C, 8G
1 downy brome 6G 7C, 7G 3C, 7G lOC
cheatgrass 5C,7G lOC 5C,8G lOC
blackgrass 3C, 6G 7C, 7G 3C, 7G lOC
annual bluegrass lC,6G 7C,7G 2C,5G lOC
green foxtail 0 4C,5G 2C,4G 6C,7G
quackgrass 4G 3C, 6G 4G 8C, 9G
Italian ryegrass 3G 5C,7G SC,7G 9C,9G
ripgut brome 5G 6G 3C,4G 9C,9G
Russian thistle O lC,lG 3C,4G 9C,9G
tansy mustard 3C,8G 8C,9G 7C,8G lOC
smartweed - - - -
tumble mustard 7C, 8G lOC lOC lOC
kochia 2G SG 7C,8G 8C,9G
shepherd's purse 8C,8G 8C,8G lOC lOC
Matricaria inodora 5C, 8G 7C, 8G 7C, 7G lOC
black nightshade 3C,4G 3C,4G SC,6G 2C,7G
yellow rocket 8G 2C,9G 7C,7G lOC
wild mustard 7C,8G 8C,8G 7C,8G lOC
wild buckwheat 2C,lG 3C,4G 3C,2G 3C,4G
:
t;
78
Table D (continued_
Compound 2
Rate kg/ha 0.002 0.008 0.008 O.OlS
Post-E:mergence
wheat 0 lG lG 5C, 5G
barley 0 3G 2C,3G 7C,6G
wild oats 0 2C,SG 5G 7C,7G
downy brome 3C, 5G 7C, 7G 7C, 7G 7C, 7G
cheatgrass 5C, 7G lOC lOC lOC
blackgrass 2C, 6G 7C, 7G 7C, 7G lOC
annual bluegrass SC,6G lOC 6C,5G lOC
green foxtail 3C,5G 4C,5G 7C,8G 6C,6G
quackgrass lC,6G 4C,6G 6G 7C,6G
Italian ryegrass lC,5G 3C,6G 3C,6G lOC
ripgut brome 4G lC,7G 3G 4C,6G
Russian thistle SC,4G 8C,7G lOC lOC
tansy mustard lOC lOC lOC lOC
smartweed
tumble mustard 7C,8G 8C,8G lOC lOC
kochia 5G lOC lOC 7C,6G
shepherd's purse lOC lOC lOC lOC
Matricaria inodora lOC lOC 7C,7G lOC
20 black nightshade 2G 3C, 5G lC, lG 0
yellow rocket lOC lOC 8C,8G lOC
wild mustard lOC lOC lOC lOC
wild buckwheat 2C, 2G 3C, 5G 6C, 6G lOC
8~;
79
Table D (continued)
Compound 2
Pre-Emergence Post-Emergence
Rate kg/ha 0.03 O. 060.030.06
wheat 2C,4G 4C, 6GlC,2G7C,7G
barley 6C,7G8C,8G4C,6GlOC
wild oats 7C,6G 9C,8G 5C,6G 8C,7G
10 downy brome 7C,8GlOC8C,7GlOC
cheatgrass lOC lOC lOC lOC
blackgrass 8C,7GlOClOC lOC
annual bluegrass 5C,6G lOC lOC lOC
green foxtail 4C,6G9C,9G8C,8G7C,7G
quackgrass 7C,7G9C,9G4C,6GlOC
Italian ryegrass 7C,8GlOC5C,7GlOC
15 ripgut brome 6C, 7G9C,9G4C,4G9C,8G
Russian thistle SC,6GlOClOClOC
tansy mustard 9C,9GlOC lOClOC
smartweed - - - -
tumble mustard lOC lOC lOC lOC
kochia 9C,8G9C,9GlOClOC
shepherd's purse lOC lOC lOC lOC
20 ~1atricaria inodora 7C,8GlOC8C,7GlOC
black nightshade 7C,6G5C,8G3C,4G2G
yellow rocket lOC lOC lOC lOC
wild mustard 9C,8GlOClOC-lOC
wild buckwheat 4C,5G5C,6G7C,8GlOC
Table D (continued)
Compound 3
Pre-Emergence Post-Emergence
Rate kg/ha 0.008 0.03 0.008 0.03
wheat 0 lC, 2G 0 lC, 2G
barley 2G 7C, 6G 0 4C, 6G
wild oats lG 7C,7G 0 7C,5G
downy brome 4G lOC 6C,7G 7C,7G
cheatgrass 2C,5G lOC 7C,7G lOC
blackgrass 7C,7G lOC 4C,5G lOC
annual bluegrass 3C,4G 5C,6G 4C,6G SC,7G
green foxtail 2C,3G 5C,4G 2C,4G 6C,7G
quackgrass 0 3C,4G 2C,3G 4C,6G
Italian ryegrass 3G 7C,7G 3C,6G 5C,6G
15 ripgut brome 0 lOC lC,2G 3C,4G
Russian thistle 0 7C,7G 3C,2G lOC
tansy mustard 4C, 5G 9C, 9G 8C, 7G lOC
smartweed - - ~ -
tumble mustard 7G lOC lOC lOC
kochia 6G lOC 4G lOC
shepherd's purse 7C,7G lOC 9C,8G lOC
Matricaria inodora 6C,7G 7C,7G 6C,5G 9C,8G
black nightshade 3C,4G 5C,6G 4G 8C,8G
yellow rocket 7G 7C,7G 2C,5G lOC
wild mustard 5C,7G 7C,8G lOC lOC
wild buckwheat 0 2C, 3G 2C, 2G SC, 6G
81
Table D (continued)
Compound 3 6
S Pre-Emergence Post-Emergence
~ate kg/ha 0.015 0.06 0.015 0.06
wheat
barley
wild oats 0 0
10 downy brome 3G 6G 0 3G
cheatgrass 7G lOC lG 3C,5G
blackgrass 6G 3C,7G 2G 5C,4G
annual bluegrass 6G 7C,7G 2G 3G
green foxtail 2G 3C,5G lG 2G
quackgrass 0 2G 0 0
Italian ryegrass lG 3G 0 0
ripgut brome 2G 2C,7G 0 2G
Russian thistle 0 lG 0 2G
tansy mustard 2G 2C, 5G 5C, 4G 7C, 8G
smartweed
tumble mustard 5G 3C, 7G lOC lOC
kcchia 0 5C,6G 0 0
shepherd's purse 7G 3C,8G 7C,8G lOC
Ma~ricaria inodora 3C,8G 7C,8G 7C,7G 9C,8G
black nightshade 4G lC,5G 2G 4C,5G
yellow rocket 3C,8G lOC 7C,7G lOC
wild mustard 7C, 8G lOC lOC lOC
wild buckwheat 3G lC, 4G lC, 2G 5C, 4G
l~r~l~
82
Test E
Test samples were formulated and applied
directly to the paddy water three days after
transplanting of rice. The test was maintained in a
greenhouse, and plant response ratings were taken at the
stated intervals after application. The data indicate:
Compound l
Barnyard- Water
Rate Rice Rice grass* Chestnut**
g/ha 4 days 4 weeks4 weeks 4 weeks
l 0 0 0 7G
4 0 0 8G
8 0 0 0 9G
Compound 36
Barnyard- Water Arrow-
Rate Rice Ricegrass*Chestnut** head***
g/ha l week 8 weeks8 weeks8 weeks 8 weeks
0 0 0 lOC 0
lO0 0 0 0 lOC 0
* Echinochloa spp.
** Eleocharis spp.
*** Sagittaria spp.
It may be seen that compounds from within the
scope of the invention can be used for selective weed
control in rice.
~3
Test F
The test chemicals, dissolved in a non-phyto-
toxic solvent, were applied in an overall spray to the
~oliage and surrounding soil of selected plant spe-
cies. One day after treatment, plants were observedfor rapid burn injury. Approximately fourteen days
after treatment, all species were visually compared to
untreated controls and rated for response to treat-
ment. The rating system was as described previously
for Test A. The data are presented in Table F.
All plant species were seeded in Woodstown sandy
loam soil and grown in a greenhouse. The following
species were grown in soil contained in plastic pots
(25 cm diameter by 13 cm deep): soybeans, cotton,
alfalfa, corn, rice, wheat, sorghum, velvetleaf
(Abutilon theoPhrasti), sesbania (Sesbania exaltata),
Cassia (Cassia tora), morningglory (Ipomoea heder-
acea), jimsonweed (Datura stramonium), cocklebur
(Xanthium pensylvanicum), crabgrass (Digitaria spp.),
nutsedge (Cyperus rotundus), barnyardgrass (Echino-
chloa crusqalli), giant foxtail (Setaria faberii) and
wild oats (Avena fatua). The following species were
grown in soil in a paper cup (12 cm diameter by 13 cm
deep): sunflower, sugarbeets, and mustard. A11
25 plants were sprayed approximately 14 days after
planting.
Some of the compounds tested by this procedure
are useful for the post-emergence control of weeds in
wheat. Compound 39 has utility for the post-emergence
control of weeds in soybeans.
G
84
Table F
Over-the-Top Soil/Foliage Treatment
5 Compound 1
Rate kg/ha 0.06 0.015 0.007 0.003
Soybeans 10G,7C lOG,7C 9G,5C 9G,5C
Velvetleaf lOG,7C 8G,3C 9G,9C 10G,9C
Sesbania 9C 8G,2C 91G,C5C 10C
Cotton 10G,7C 7G,3C 10G,9C 10C
Alfalfa 10G,5C 9G,4C 10G,8C 10G,8C
Jimsonweed 9C 7G,3C 0 0
Corn 10C 9GG,7CC 8GG,2~ 95GG,lH
Rice 88G 3cC 32GC,lc 8G,SC 7G,2C
Nutsedge l00occ 100C 9G,4C 9G,2C
Giant foxtail 10G,3C 7G,3C SG 5G
Sugarbeets 10C 3CG 8G,3C 10C
12~1t;86
Table F (continued)
Over-the-To~ Soil/Folia~e Treatment
Compound 2
Rate kg/ha 0.06 0.015
Soybeans 9C 10G,8C
Velvetleaf 10G,4C 5G
10 Cassia 10C 7G,3C
Cotton 10G,6C 7G,3C
Alfalfa 10Cc 87Gc,2C
Jimsonweed 10C
Cocklebur 10C 10G,7C
15 Crabgrass 10C 6GG,31c
Nutsedge 10C 2C
Wheat 10C 6G,3C
Giant foxtail 10C
Wild Oats 10C 8G~35C
Mustard . - -
Sunflower
Sugarbeets
86
able F (continued)
Over-the-To~ Soil/Foliage Treatment
Compound 3
Rate kg/ha 0.06 0.015 0.007 0.003
Soybeans 10G,6C 10G,4C 9G,7C 10G,5C
Velvetleaf 7G,2C 5G 8G,8C 7G
Sesbania 9C 9C 8G,5C 9G,8C
Cassia 10G,7C 5G,3C 10G,5C 8G,4C
Cotton 10G,6C 10G,6C 10C 8G,2C
Morningglory 9G,4C 9G,3C 10G,8C 7G, lH
Alfalfa 9C 8C 7G 6G,2C
Jimsonweed 9G,3C - - 0
Cocklebur 10G,7C 10G,7C 4G,5C 3G
Corn 10C 9G,6C 9G 9G,lH
Crabgrass 7G,4C 0 5G,lC 0
Rice 8G,5C 7G,3C 9G,7C 9G,7C
Nutsedge 9G,4C 9G,3C 7G 5G
Barnyardgrass 10C 9C 9G,4C 9G,2C
Wheat 8C lC 6G 3G
Giant foxtail - - 0 0
Wild Oats 10C 7G,3C 5G 4G
Sorghum 10C 9C 7G,3U 9G,6U
20 Mustard ~ ~ 10C 9G,9C
Sunflower - - 10C 10G,9C
Sugarbeets - - 10C 9G,9C
87
Table F (continued)
Over-the-Top Soil/Foliage Treatment
Compound 36
Rate kg/ha 0.12 0.06 0.015
Soybeans 10C 9G,9C 9G,7C
Velvetleaf 10C 10C 8G,7C
Sesbania 10C 10C 10C
Cassia 10C 9G,3C 8G,3C
Cotton 9G,9C 8G,8C 4G,4C
Morningglory 10C 10C 8G,4C
Alfalfa 9G 5G,3C 7G
Jimsonweed 0 0 0
Cocklebur 10C 10C 10C
Corn 2G,lC lG,2C lG,lC
15 Crabgrass 5G 0 0
Rice 5G 4G 2G
Nutsedge 7G,5C 7G,5C 0
Barnyardgrass 9G,5C 8G,5C 6G,2C
Wheat 2G 0 0
Giant foxtail 3G,2C 2C 0
Wild Oats 3G 0 0
Sorghum 7G,3C 5G,2C 2G,2C
Mustard 10C 10C 10C
Sunflower 10C 10C 10C
Sugarbeets 9G,3C 9G,5C 8G
88
~ble F (continued)
Cver-the-lbp SoiyFoliaqe Treatment
Compound 39
Rate kg/ha 0.12 0.06 0.03 0.015 0.015 0.015 0.007
Soybeans 10G,7C 9G,9C 4G 0 0 3G 0
Velvetleaf 9G,7C 8G,SC 10G,5C 8G,4C 8G,3C 8G,3C 7G,3C
Sesbania 10C 9G,4C 10G,7C 8G,6C 9G,4C 5G,4C 7G,4C
10 Cassia 9G,7C 5G,5C 8G,5C 5G,5C 8G,4C 4G,6C 5G,3C
Cotton 9G,7C 9G,6C 9G,5C 8G,4C 8G,4C 8G,4C 6G,3C
Morningglory 9G,8C 9G,5C 9G,4C 9G,5C 9G,4C 10G,3C 9G,6C
Alfalfa 9G,8C 10C 9G,5C 5G,2C 9G,5C 7G 7G,3C
Jimsonweed 0 - - - 8G 2C
Cocklebur 10G,7C 10G,5C 10G,5C 9G,5C 10G,5C 10G,4C 9G,4C
Corn 0 0 3G,2C 0 lG,2C 0 2G
15 Crabgrass 0 0 0 0 0 0 0
Rice 0 0 4G lG 3G 0 2G
Nu tsedge lG 0 3G 0 0 0 5G
Barnyardgrass 0 0 3G 0 0 0 æ
Wheat 0 0 0 0 0 0 0
Giant foxtail 0 0 2G 0 2G 0 lG
Wild Oats 0 0 2G 0 lG 2G 0
Sorghum 0 0 5G 0 4G 5G 3G
20 Mustard 10C 10C 10G,SC 10G,5C 10G,5C 9G 10G,5C
Sunflower 10C 10C 10G,8C 10G,8C 10G,8C 10C 10G,8C
Sugarbeets 10G,5C 10C 9G,3C 10G,5C 9G,3C 9G 10G,4C
89
Test G
This test demonstrates the broadleaf herbicidal
properties of compound 39. Approximately 12 soybean
plants were grown in a 25 cm. diameter plastic pot.
In another pot of equal size the following broadleaf
plant species were grown: sugarbeets, velvetleaf,
Sesbania, Çassia, mustard, morningglory, alfalfa,
jimsonweed, and cocklebur. The plant foliage and
surrounding soil were treated with the test chemical
dissolved in a non-phytotoxic solvent as an overall
spray at the rate of 0.015 kg/ha, when the plants were
17 days old. Visual ratings of herbicidal effects
were made 22 days after treatment utilizing the rating
system described for Test A.
Table G
Rate 0.015
Soybeans 0
2 Sugarbeets 9G
Velvetleaf 9G,9C
Sesbania 8G,8C
Cassia 7G,4C
Mustard lOC
Morningglory 9G,9C
Alfalfa 8G,4C
Jimsonweed 0
Cocklebur lOP,2C
The data indicate that the compound tested pro-
vides excellent post-emergence control of broadleaved
weeds in soybeans.
-
